PHP関数strip_tagsのバグ（HTMLの削除）

//解决strip_tags的bug
function fixtags ($text) {
$text = htmlspecialchars($text);
$text = preg_replace("/"/", ""\"", $text);
$tags = "/<(!|)(\/|)(\w*)(\ |)(\w*)([\\\=]*)(?|(\")\""\"|)(?|(.*)?"(\")|)([\ ]?)(\/|)>/i";
$replacement = "<$1$2$3$4$5$6$7$8$9$10$11>";
$text = preg_replace($tags, $replacement, $text);
$text = preg_replace("/=\"\"/", "=", $text);
$text = preg_replace("/"\"/", "\"", $text);
return $text;
}

使用方法：

strip_tags(fixtags($string), '');